GST Reverse Charge: Section 9(3) & 9(4) Complete Guide 2026

When a registered business pays ₹2 lakh to a lawyer for drafting contracts, the lawyer doesn't collect GST from you — you pay it directly to the government. That's the Reverse Charge Mechanism (RCM) in action, and getting it wrong is one of the most common reasons businesses face GST demand notices. Whether you're paying freight to a goods transport agency, hiring a director, or buying goods from an unregistered vendor, RCM obligations can sneak up on you.

RCM under GST is governed by two provisions in the CGST Act, 2017: Section 9(3) for specified categories notified by the government, and Section 9(4) for purchases from unregistered suppliers. The critical difference: Section 9(3) applies regardless of the supplier's registration status, while Section 9(4) specifically targets transactions with unregistered dealers. Understanding this distinction — and knowing exactly which services trigger RCM — can save your business from significant penalties under Section 122 of the CGST Act.

What Is the Reverse Charge Mechanism?

Under normal GST, the supplier charges tax and deposits it with the government. Under RCM, the recipient of goods or services becomes liable to pay GST directly. This flip happens for two reasons:

• Compliance enforcement: When suppliers are outside the GST net — small vendors, individual professionals — making the recipient liable ensures tax collection does not leak.
• Sector-specific policy: Certain sectors like transport and legal services have structural challenges with tax compliance, so the government shifted the liability to the business receiving the service.

Your obligations as a recipient under RCM:

1. 1Self-assess and pay GST through cash (not ITC) in the electronic cash ledger
2. 2Issue a payment voucher at the time of payment to the supplier
3. 3Claim ITC on the RCM payment (subject to eligibility conditions)
4. 4Report both the liability and ITC in GSTR-3B

Section 9(3): Notified Categories Where RCM Always Applies

Section 9(3) covers specific goods and services notified by the government under Notification No. 13/2017-CT(Rate) for services and Notification No. 04/2017-CT(Rate) for goods. The recipient must pay RCM regardless of whether the supplier is registered under GST.

Services Under Section 9(3) RCM

Goods Transport Agency (GTA) Services

If a GTA transports goods by road and issues a consignment note, the registered recipient must pay GST under RCM at 5% (without ITC) or 12% (with ITC) — the GTA chooses which rate applies when it registers. If a GTA opts into the forward charge mechanism by filing a declaration at the start of the financial year, RCM does not apply for that year.

Example: Your manufacturing company (turnover ₹5 crore) pays ₹50,000 monthly to a transport company that issues consignment notes. If the GTA hasn't opted for forward charge, you owe ₹2,500 as GST every month, paid from your cash ledger — not from your ITC balance.

Legal Services by Advocates

Any legal service provided by an individual advocate or a firm of advocates to a business entity triggers RCM at 18%, regardless of the advocate's GST registration status. This covers consultation, drafting, litigation, and arbitration services.

Example: Your company pays a senior advocate ₹1,80,000 for a High Court matter. Your RCM liability = ₹1,80,000 × 18% = ₹32,400, deposited directly by your company into the government treasury.

Services by a Director to a Company

When a company pays a director who is not an employee — independent director fees, professional retainers, sitting fees for board meetings — the company must pay RCM at 18% on those amounts. This catches many companies off-guard because the director often does not issue any GST invoice.

Security Services

Security services provided by any person other than a body corporate to a registered business entity attract RCM at 18%. If you hire an individual or proprietorship firm for security at your premises, you pay the GST, not the security provider.

Renting of Motor Vehicles

Renting a vehicle designed to carry passengers from a non-corporate entity (individual or partnership) to a corporate entity for employee transport: RCM applies at 5% (fuel-inclusive) or 12% (fuel-exclusive).

Sponsorship Services

Any entity providing sponsorship services to a body corporate or partnership firm is subject to RCM at 18%. If your company pays ₹5,00,000 to an event organiser as sponsorship, your RCM liability = ₹90,000.

Services by Insurance Agents

Insurance companies receiving services from insurance agents pay GST on commission under RCM at 18%.

Goods Under Section 9(3) RCM

Select goods also attract RCM, including:

• Cashew nuts in shell: 5% RCM when purchased from agriculturists
• Raw cotton: 5% RCM when purchased from an agriculturist
• Silk yarn: 5% RCM when purchased from a manufacturer of silk yarn
• Used vehicles and seized goods sold by Central/State Government: At applicable rates

Section 9(4): Purchases from Unregistered Suppliers

Section 9(4) was the original broad provision making recipients liable for RCM on all purchases from unregistered suppliers. After suspension and revision, it now applies in a narrowed form to specific notified sectors only.

As of 2026, Section 9(4) applies primarily to promoters and developers in the real estate sector buying goods or services from unregistered suppliers — notified under Notification No. 07/2019-CT(Rate). Under this notification, a real estate developer constructing a residential complex must pay RCM at applicable rates on purchases from unregistered vendors.

For most manufacturing and trading SMBs: Section 9(4) does not create broad RCM obligations on purchases from unregistered vendors. A trading company buying stock from a local unregistered supplier for ₹30,000 does not trigger RCM liability under the current framework.

Always verify with your CA whether your business sector falls under any active Section 9(4) notification before assuming it is inapplicable to your operations.

Accounting Treatment for RCM Transactions

Correct journal entries prevent double-counting and ensure accurate ITC claims. Here is the step-by-step accounting for a standard GTA RCM transaction.

Scenario: Your company pays ₹50,000 freight to a GTA under RCM (5% rate = ₹2,500 GST).

Step 1 — On accrual of freight expense:

Freight Expense A/c            Dr.  50,000
  To Accounts Payable (GTA)               50,000

Step 2 — On self-assessment of RCM liability:

GST RCM ITC Receivable A/c     Dr.   2,500
  To GST RCM Payable A/c                   2,500

Step 3 — On payment of RCM via the electronic cash ledger:

GST RCM Payable A/c            Dr.   2,500
  To Bank A/c                               2,500

Step 4 — On claiming ITC in GSTR-3B:

GST Input Credit A/c           Dr.   2,500
  To GST RCM ITC Receivable A/c             2,500

The rule is absolute: you cannot set off RCM liability against your existing ITC balance. Payment from the electronic cash ledger comes first — only then does ITC eligibility arise for the corresponding amount.

ITC Eligibility on RCM Payments

Not every RCM payment creates a claimable ITC. The principles under Sections 16 and 17(5) of the CGST Act govern eligibility:

ITC is claimable on:

• GTA services at 12% used for transporting business goods
• Security services used for protecting business premises
• Legal services for bona fide business purposes
• Director retainer fees for services rendered to the company

ITC is blocked on:

• Services consumed personally by the proprietor or employees
• Motor vehicle hire for personal employee commute — blocked under Section 17(5)
• Any service where the underlying supply is blocked under Section 17(5)

Critical timing rule: ITC on RCM can be claimed only in the period when you have paid the RCM tax in cash AND received the supply. Claiming ITC on accrual before the cash payment attracts interest at 24% per annum under Section 50(3) — a costly error that compounds quickly across multiple months.

Reporting RCM in GSTR-3B

Every month, your GSTR-3B must accurately reflect RCM transactions in two specific tables:

• Table 3.1(d): Report the taxable value and IGST/CGST/SGST on inward supplies liable to RCM
• Table 4(A)(3): Report ITC on inward supplies under RCM that you are claiming for this period

Reconcile these two tables every single month before filing. The cumulative ITC claimed in Table 4(A)(3) should never exceed the cumulative tax paid via Table 3.1(d). This mismatch is a primary trigger for GST audit scrutiny under Section 65 of the CGST Act.

If your GSTR-3B for a given month shows zero in 3.1(d) but a positive figure in 4(A)(3) for RCM, that is a red flag that will attract a department query.

Common RCM Mistakes That Lead to Demand Notices

Assuming no GST if the supplier charged nothing: Your RCM liability is independent of the supplier's billing. A GTA that issued a consignment note but collected no GST still creates your full RCM obligation. The absence of a supplier invoice does not extinguish your duty as the recipient.

Paying RCM from existing ITC balance: The department treats this as non-payment of RCM liability, triggering a demand for the full tax amount plus interest at 24% per annum under Section 50. This is distinct from your normal ITC reversal process.

Overlooking director fees and sitting fees: Independent directors and professional retainers paid to non-employee directors are among the most overlooked RCM triggers. These amounts typically surface only during a Section 65 GST audit, by which time interest and penalties have accumulated.

Claiming ITC before RCM cash payment clears: RCM ITC entitlement arises after cash payment — not at invoice receipt. Recording ITC on accrual is a timing error that attracts interest and distorts your ITC balance.

Not issuing payment vouchers: Rule 36(1)(b) of the CGST Rules mandates a self-generated payment voucher for every RCM transaction. Without this document, your ITC claim is open to challenge during assessment. Treat payment vouchers with the same seriousness as tax invoices.

Treating Section 9(4) as completely dormant: Real estate developers and other notified-sector businesses still operate under Section 9(4). Assuming it is universally suspended is a compliance risk that can result in RCM demands covering multiple financial years.

Key Takeaways

• Under RCM, the recipient pays GST — the supplier's registration status does not extinguish your obligation under Section 9(3).
• GTA, legal services, director fees, security services, and sponsorship are the five most common RCM triggers for Indian businesses.
• Section 9(4) is narrowed, not abolished — real estate developers must still apply it on unregistered vendor purchases under Notification No. 07/2019-CT(Rate).
• RCM must be paid in cash from the electronic cash ledger; ITC can be claimed only after this payment is confirmed.
• Issue a payment voucher for every RCM transaction under Rule 36(1)(b) — it is the document that validates your ITC claim.
• Reconcile GSTR-3B Table 3.1(d) against Table 4(A)(3) every month to eliminate the most common trigger for GST audit notices.

How corpus Helps

corpus automatically flags RCM-applicable expenses when you categorise transactions — GTA freight bills, legal retainers, director fee vouchers, security service invoices — and posts the corresponding GST liability entry and payment voucher without manual effort. The platform pre-fills GSTR-3B Table 3.1(d) and Table 4(A)(3) with accurate figures, enforces the cash-payment-before-ITC sequencing, and alerts you before RCM deadlines so you never miss a payment. With corpus, RCM compliance shifts from a manual monthly checklist to a system-managed workflow that your whole CA firm can track in one place.

Set up your vendor expense classifications in corpus today and stop letting RCM mismatches trigger your next GST demand notice.